142 lines
4.8 KiB
JavaScript
142 lines
4.8 KiB
JavaScript
"use strict";
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var expect = require('expect.js');
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var Immutable = require('immutable');
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var Route = require('../src/route.js');
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var Patch = require('../src/patch.js');
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var __ = Route.__;
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var _$ = Route._$;
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function checkPrettyPatch(p, expectedAdded, expectedRemoved) {
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expect(p.pretty()).to.equal(
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('<<<<<<<< Removed:\n' + expectedRemoved.join('\n') + '\n' +
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'======== Added:\n' + expectedAdded.join('\n') + '\n' +
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'>>>>>>>>'));
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}
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describe('basic patch compilation', function () {
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it('should print as expected', function () {
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checkPrettyPatch(Patch.assert([1, 2]),
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[' < 1 2 > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.assert(__),
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[' ★ >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub(__),
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[' < $Observe ★ > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2]),
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[' < $Observe < 1 2 > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.pub('x'),
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[' < $Advertise "x" > >{true}'],
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['::: nothing']);
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});
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it('should work at nonzero metalevel', function () {
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checkPrettyPatch(Patch.assert([1, 2], 0),
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[' < 1 2 > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.assert([1, 2], 1),
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[' < $AtMeta < 1 2 > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.assert([1, 2], 2),
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[' < $AtMeta < $AtMeta < 1 2 > > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2], 0),
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[' < $Observe < 1 2 > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2], 1),
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[' < $AtMeta < $Observe < 1 2 > > > >{true}',
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' $Observe < $AtMeta < 1 2 > > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2], 2),
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[' < $AtMeta < $AtMeta < $Observe < 1 2 > > > > >{true}',
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' $Observe < $AtMeta < 1 2 > > > > >{true}',
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' $Observe < $AtMeta < $AtMeta < 1 2 > > > > >{true}'],
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['::: nothing']);
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});
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});
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describe('patch sequencing', function () {
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it('should do the right thing in simple cases', function () {
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checkPrettyPatch(Patch.assert(__).andThen(Patch.retract(3)),
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[' ★ >{true}',
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' 3::: nothing'],
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[' 3 >{true}']);
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checkPrettyPatch(Patch.assert(3).andThen(Patch.retract(__)),
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['::: nothing'],
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[' ★ >{true}']);
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checkPrettyPatch(Patch.assert(__).andThen(Patch.retract(__)),
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['::: nothing'],
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[' ★ >{true}']);
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checkPrettyPatch(Patch.assert(3).andThen(Patch.retract(3)),
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['::: nothing'],
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[' 3 >{true}']);
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checkPrettyPatch(Patch.sub([1, __]).andThen(Patch.unsub([1, 2])),
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[' < $Observe < 1 ★ > > >{true}',
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' 2::: nothing'],
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[' < $Observe < 1 2 > > >{true}']);
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checkPrettyPatch(Patch.sub([__, 2]).andThen(Patch.unsub([1, 2])),
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[' < $Observe < ★ 2 > > >{true}',
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' 1::: nothing'],
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[' < $Observe < 1 2 > > >{true}']);
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checkPrettyPatch(Patch.sub([__, __]).andThen(Patch.unsub([1, 2])),
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[' < $Observe < ★ ★ > > >{true}',
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' 1 ★ > > >{true}',
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' 2::: nothing'],
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[' < $Observe < 1 2 > > >{true}']);
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});
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it('works for longer chains of asserts and retracts', function () {
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var rawPatch =
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Patch.assert(1)
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.andThen(Patch.retract(2))
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.andThen(Patch.retract(3))
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.andThen(Patch.assert(4))
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.andThen(Patch.retract(99));
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checkPrettyPatch(rawPatch,
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[' 1 >{true}',
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' 4 >{true}'],
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[' 2 >{true}',
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' 3 >{true}',
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' 99 >{true}']);
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});
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});
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describe('patch lifting', function () {
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it('should basically work', function () {
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checkPrettyPatch(Patch.assert([1, 2]).lift(),
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[' < $AtMeta < 1 2 > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2]).lift(),
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[' < $AtMeta < $Observe < 1 2 > > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.assert([1, 2]).andThen(Patch.assert(Patch.atMeta([1, 2]))).lift(),
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[' < $AtMeta < $AtMeta < 1 2 > > > >{true}',
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' 1 2 > > >{true}'],
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['::: nothing']);
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});
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});
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describe('patch dropping', function () {
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it('should basically work', function () {
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checkPrettyPatch(Patch.assert([1, 2]).drop(),
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['::: nothing'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2]).drop(),
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['::: nothing'],
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['::: nothing']);
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checkPrettyPatch(Patch.sub([1, 2], 1).drop(),
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[' < $Observe < 1 2 > > >{true}'],
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['::: nothing']);
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checkPrettyPatch(Patch.assert([1, 2]).andThen(Patch.assert(Patch.atMeta([1, 2]))).drop(),
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[' < 1 2 > >{true}'],
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['::: nothing']);
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});
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});
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